261738406

素因数分解:

$2^1\times {\mathrm{419}}^1\times {\mathrm{547}}^1\times {\mathrm{571}}^1$

素因数の和:1539

約数の個数: 16

約数和(自身を含む): 394954560

約数和(自身を除く): 133216154

約数列:

[1, 2, 419, 547, 571, 838, 1094, 1142, 229193, 239249, 312337, 458386, 478498, 624674, 130869203, 261738406]

約数ペア:

[(1, 261738406), (2, 130869203), (419, 624674), (547, 478498), (571, 458386), (838, 312337), (1094, 239249), (1142, 229193)]